package com.itheima.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.mapper.EmpMapper;
import com.itheima.pojo.*;
import com.itheima.service.EmpExprService;
import com.itheima.service.EmpService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.time.LocalDateTime;
import java.util.List;
import java.util.function.Consumer;

@Service
public class EmpServiceImpl extends ServiceImpl<EmpMapper, Emp> implements EmpService {
    @Autowired
    private EmpExprService empExprService;

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void saveEmp(Emp emp) {
        emp.setCreateTime(LocalDateTime.now());
        emp.setUpdateTime(LocalDateTime.now());
        emp.setPassword("123456");
        this.save(emp);
        List<EmpExpr> exprList = emp.getExprList();
        if(exprList!=null&&exprList.size()>0){
//            exprList.forEach(expr -> expr.setEmpId(emp.getId()));
            exprList.forEach(new Consumer<EmpExpr>() {
                @Override
                public void accept(EmpExpr empExpr) {
                    empExpr.setEmpId(emp.getId());
                }
            });

            empExprService.saveBatch(exprList);
        }
    }

    @Override
    public Emp getEmpById(Integer id) {
        Emp emp = this.getById(id);
        if(emp==null){
            throw new RuntimeException("数据被删了");
        }
        List<EmpExpr> list = empExprService.list(new LambdaQueryWrapper<EmpExpr>().eq(EmpExpr::getEmpId, id));
        emp.setExprList(list);
        return emp;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void updateEmp(Emp emp) {
        emp.setUpdateTime(LocalDateTime.now());
        this.updateById(emp);
        empExprService.remove(new LambdaQueryWrapper<EmpExpr>().eq(EmpExpr::getEmpId,emp.getId()));
        List<EmpExpr> exprList = emp.getExprList();
        if(exprList!=null&&exprList.size()>0){
            exprList.forEach(expr -> expr.setEmpId(emp.getId()));
            empExprService.saveBatch(exprList);
        }
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void deleteEmpByIds(List<Integer> ids) {
        this.removeBatchByIds(ids);
        empExprService.remove(new LambdaQueryWrapper<EmpExpr>().in(EmpExpr::getEmpId,ids));
    }
}
